/*
 * (c) Copyright 2018 Palantir Technologies Inc. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.palantir.atlasdb.jackson;

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.SerializerProvider;
import com.fasterxml.jackson.databind.ser.std.StdSerializer;
import com.google.common.collect.Iterables;
import com.palantir.atlasdb.api.TableRange;
import com.palantir.atlasdb.impl.TableMetadataCache;
import com.palantir.atlasdb.table.description.TableMetadata;
import java.io.IOException;

public class TableRangeSerializer extends StdSerializer<TableRange> {
    private static final long serialVersionUID = 1L;
    private final TableMetadataCache metadataCache;

    public TableRangeSerializer(TableMetadataCache metadataCache) {
        super(TableRange.class);
        this.metadataCache = metadataCache;
    }

    @Override
    public void serialize(TableRange value, JsonGenerator jgen, SerializerProvider provider) throws IOException {
        TableMetadata metadata = metadataCache.getMetadata(value.getTableName());
        jgen.writeStartObject();
        jgen.writeStringField("table", value.getTableName());
        jgen.writeBinaryField("raw_start", value.getStartRow());
        jgen.writeBinaryField("raw_end", value.getEndRow());
        jgen.writeNumberField("batch_size", value.getBatchSize());
        if (!Iterables.isEmpty(value.getColumns())) {
            jgen.writeArrayFieldStart("cols");
            for (byte[] column : value.getColumns()) {
                AtlasSerializers.serializeCol(jgen, metadata.getColumns(), column);
            }
            jgen.writeEndArray();
        }
        jgen.writeEndObject();
    }
}
